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From Keith Turner <ke...@deenlo.com>
Subject Re: Accumulo On MapR
Date Tue, 20 Mar 2012 16:41:20 GMT
On Tue, Mar 20, 2012 at 12:34 PM, Todd Stavish <toddstavish@gmail.com> wrote:
> Thanks Eric. netstat didn't indicate anyting else was listening at
> 9999. I switched to 1.4RC2 using confs from 512MB/sandalone. tserver
> and master are starting. I don't see the port conflict anymore, but I
> am seeing the following exception in all of the logs:
>
> 20 09:00:07,644 [tabletserver.TabletServer] ERROR: Uncaught exception
> in TabletServer.main, exiting
> java.lang.ClassCastException: com.mapr.fs.MapRFileSystem cannot be
> cast to org.apache.hadoop.hdfs.DistributedFileSystem
>        at org.apache.accumulo.server.Accumulo.waitForZookeeperAndHdfs(Accumulo.java:179)
>        at org.apache.accumulo.server.Accumulo.init(Accumulo.java:130)
>        at org.apache.accumulo.server.tabletserver.TabletServer.config(TabletServer.java:2939)
>        at org.apache.accumulo.server.tabletserver.TabletServer.main(TabletServer.java:3109)
>        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>        at java.lang.reflect.Method.invoke(Method.java:597)
>        at org.apache.accumulo.start.Main$1.run(Main.java:89)
>        at java.lang.Thread.run(Thread.java:662)
>
> I'll be at the accumulo meetup tomorrow and can show this live if need be.
>
> -Todd

I looked at the code and its just simply cast to a
DistributedFileSystem inorder to check if HDFS is in safe mode.  It
should do an instanceof operation and then do the case.  Would you
mind opening a ticket about this?

>
>
> On Fri, Mar 16, 2012 at 9:19 AM, Eric Newton <eric.newton@gmail.com> wrote:
>> The monitor and gc do run in their own processes, which is kinda hinted at
>> the JVM memory sizes in conf/accumulo-env.sh
>>
>> The monitor may not be working because your jvm/os security profile is
>> different from those we've seen to date.
>> Replace conf/monitor.security.policy with:
>>
>>  grant{
>>   permission java.security.AllPermission;
>> };
>>
>> Or just chase down all the security violations you are getting in your
>> jvm/OS.  A quick look at the monitor logs and they seem ok.
>>
>> Your tserver isn't starting because some other process is listening on the
>> port.  The monitor can't talk to the master because it's waiting for some
>> tablet servers to show up.  The monitor may not display until it talks to
>> the master.  Good news: the logger started up fine.
>>
>> Do this:
>>
>> echo localhost > conf/gc
>>
>> That will get the gc to start up.
>>
>> Then this:
>>
>> # kill everything accumulo related
>> pkill -9 -f accumulo.start
>>
>> # start everything again
>> ./bin/start-all.sh
>>
>> Most of these issues, as well as some example configs for specific memory
>> sizes are fixed in the accumule-1.4.0 release candidate.
>>
>> -Eric
>>
>>
>> On Fri, Mar 16, 2012 at 12:00 PM, Todd Stavish <toddstavish@gmail.com>
>> wrote:
>>>
>>> accumulo init seemed to work. Full disclosure, I am running accumlo in
>>> the MapR M5 vm. I cranked down the memory allocations in
>>> accumulo-env.sh to compensate (maybe too much?). I'm not seeing all of
>>> the process launch. Does the monitor and GC run in their own
>>> processes? Neither the monitoring web page nor accumulo shell are
>>> working. Accumulo shell output below, in addition, ... running
>>> processes, logs, and confs attached.
>>>
>>> Running the whole MapR/Accumulo stack all in a single VM is flirting
>>> with oxymoron. My goal was just to go through the install sequence and
>>> run a few samples. If there is little hope in getting this to work in
>>> a vm, please let me now.
>>>
>>>
>>> mapr@mapr-desktop:/opt/accumulo-1.3.5-incubating/bin$ ./accumulo shell
>>> Enter current password for 'mapr'@'myinstance': *******
>>> 16 08:41:15,971 [impl.ServerClient] WARN : Failed to find an available
>>> server in the list of servers: [mapr-desktop:9999:9999 (120000)]
>>> 16 08:41:15,974 [shell.Shell] ERROR:
>>> org.apache.accumulo.core.client.AccumuloException:
>>> org.apache.thrift.transport.TTransportException: Failed to connect to
>>> a server
>>>
>>>
>>> Here's what's running:
>>>
>>> mapr     31166  0.2  3.8 708684 78332 ?        Sl   08:08   0:04
>>> /usr/lib/jvm/java-6-sun-1.6.0.26/bin/java -Dapp=master -classpath
>>>
>>> /opt/accumulo-1.3.5-incubating//conf:/opt/accumulo-1.3.5-incubating//src/start/target/classes:/opt/accumulo-1.3.5-incubating//lib/accumulo-start-1.3.5-incubating.jar:/opt/accumulo-1.3.5-incubating//lib/commons-jci-core-1.0.jar:/opt/accumulo-1.3.5-incubating//lib/commons-jci-fam-1.0.jar:/opt/accumulo-1.3.5-incubating//lib/log4j-1.2.16.jar:/opt/accumulo-1.3.5-incubating//lib/commons-logging-1.0.4.jar:/opt/accumulo-1.3.5-incubating//lib/commons-logging-api-1.0.4.jar
>>> -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -Xmx256m
>>> -Xms256m -XX:OnOutOfMemoryError=kill -9 %p
>>>
>>> -Djava.library.path=/opt/mapr/hadoop/hadoop-0.20.2//lib/native/Linux-amd64-64
>>> org.apache.accumulo.start.Main master --address mapr-desktop
>>>
>>> mapr     31674  0.2  3.8 703408 78112 ?        Sl   08:08   0:03
>>> /usr/lib/jvm/java-6-sun-1.6.0.26/bin/java -Dapp=logger -classpath
>>>
>>> /opt/accumulo-1.3.5-incubating//conf:/opt/accumulo-1.3.5-incubating//src/start/target/classes:/opt/accumulo-1.3.5-incubating//lib/accumulo-start-1.3.5-incubating.jar:/opt/accumulo-1.3.5-incubating//lib/commons-jci-core-1.0.jar:/opt/accumulo-1.3.5-incubating//lib/commons-jci-fam-1.0.jar:/opt/accumulo-1.3.5-incubating//lib/log4j-1.2.16.jar:/opt/accumulo-1.3.5-incubating//lib/commons-logging-1.0.4.jar:/opt/accumulo-1.3.5-incubating//lib/commons-logging-api-1.0.4.jar
>>> -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -Xmx256m
>>> -Xms256m -XX:OnOutOfMemoryError=kill -9 %p
>>>
>>> -Djava.library.path=/opt/mapr/hadoop/hadoop-0.20.2//lib/native/Linux-amd64-64
>>> org.apache.accumulo.start.Main logger --address mapr-desktop
>>>
>>> mapr     31853  0.3  4.4 752476 91420 ?        Sl   08:08   0:04
>>> /usr/lib/jvm/java-6-sun-1.6.0.26/bin/java -Dapp=tserver -classpath
>>>
>>> /opt/accumulo-1.3.5-incubating//conf:/opt/accumulo-1.3.5-incubating//src/start/target/classes:/opt/accumulo-1.3.5-incubating//lib/accumulo-start-1.3.5-incubating.jar:/opt/accumulo-1.3.5-incubating//lib/commons-jci-core-1.0.jar:/opt/accumulo-1.3.5-incubating//lib/commons-jci-fam-1.0.jar:/opt/accumulo-1.3.5-incubating//lib/log4j-1.2.16.jar:/opt/accumulo-1.3.5-incubating//lib/commons-logging-1.0.4.jar:/opt/accumulo-1.3.5-incubating//lib/commons-logging-api-1.0.4.jar
>>> -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -Xmx256m
>>> -Xms256m -Xss128k -XX:OnOutOfMemoryError=kill -9 %p
>>>
>>> -Djava.library.path=/opt/mapr/hadoop/hadoop-0.20.2//lib/native/Linux-amd64-64
>>> org.apache.accumulo.start.Main tserver --address mapr-desktop
>>>
>>> -Todd
>>>
>>>
>>>
>>>
>>> On Thu, Mar 15, 2012 at 4:38 PM, Todd Stavish <toddstavish@gmail.com>
>>> wrote:
>>> > Domo, Takuya-san.  For posterity's sake ->
>>> >
>>> > In accumulo-site.xml:
>>> >
>>> > <property>
>>> >  <name>instance.zookeeper.host</name>
>>> >  <value>localhost:5181</value>
>>> >  <description>comma separated list of zookeeper servers</description>
>>> > </property>
>>> >
>>> >
>>> >
>>> >
>>> >
>>> > On Wed, Mar 14, 2012 at 9:33 PM, Takuya UESHIN <ueshin@happy-camper.st>
>>> > wrote:
>>> >> Hi,
>>> >>
>>> >> You need to specify ZooKeeper client port to 5181 when you use MapR.
>>> >> MapR's ZooKeeper client port is 5181 by default.
>>> >>
>>> >> Thanks.
>>> >>
>>> >>
>>> >> 2012/3/15 Keith Turner <keith@deenlo.com>
>>> >>>
>>> >>> Is zookeeper up and running?
>>> >>>
>>> >>> If so can you jstack the init java process and send the stack trace
of
>>> >>> the main thread?
>>> >>>
>>> >>> Keith
>>> >>>
>>> >>> On Wed, Mar 14, 2012 at 5:31 PM, Todd Stavish <toddstavish@gmail.com>
>>> >>> wrote:
>>> >>> > Hello,
>>> >>> >
>>> >>> > I followed all of the setup / initialization steps. However,
when I
>>> >>> > ran accumulo init, it hangs on naming the instance.
>>> >>> >
>>> >>> > mapr@mapr-desktop:/opt/accumulo-1.3.5-incubating/bin$ ./accumulo
>>> >>> > init
>>> >>> > 14 14:15:24,536 [util.Initialize] INFO : Hadoop Filesystem
is
>>> >>> > maprfs:///
>>> >>> > 14 14:15:24,584 [util.Initialize] INFO : Accumulo data dir
is
>>> >>> > /accumulo
>>> >>> > 14 14:15:24,585 [util.Initialize] INFO : Zookeeper server is
>>> >>> > localhost:2181
>>> >>> > Instance name : test
>>> >>> >
>>> >>> > Init doesn't seem to produce any logs (at least not in the
>>> >>> > accumolo/logs dir), is there a verbose mode or something that
can
>>> >>> > help
>>> >>> > me figure out where it is failing?
>>> >>> >
>>> >>> > Thanks,
>>> >>> > -Todd
>>> >>
>>> >>
>>> >>
>>> >>
>>> >> --
>>> >> Takuya UESHIN
>>> >> Tokyo, Japan
>>> >>
>>> >> http://twitter.com/ueshin
>>
>>

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